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Felix, K. & L. Felix

Bestandsentwicklung des Gartenrotschwanzes Phoenicurus phoenicurus in der Gemeinde Horgen 1965–2003.

2004

101

109–114

Key words
(von 1994 bis 2006 vergeben)

Bestandesentwicklung, Population, Obstgarten, Nistkasten

Phoenicurus phoenicurus, population trend, orchards, Switzerland

Schlagwort_Vogelart
(wissenschaftlich)

Upupa epops, Jynx torquilla, Picus viridis, Phoenicurus phoenicurus, Ficedula hypoleuca, Lanius senator

Schlagwort_Vogelart
(deutsch)

Wiedehopf, Wendehals, Grünspecht, Gartenrotschwanz, Trauerschnäpper, Rotkopfwürger

Horgen, Zürich

deutsch

Abhandlung

Number of breeding pairs of the Common Redstart Phoenicurus phoenicurus in the municipality of Horgen, 1965–2003. – In the municipality of Horgen (canton of Zurich) the number of breeding pairs of Common Redstart was recorded from 1965 onwards, at first every two or three years, since 1975 every year. The 46 orchards covered a surface of about 56 ha, at an altitude of 440 to 670 m a.s.l. From 1965 to 1975 the number of breeding pairs decreased by 80 %, from 46 to 9 pairs. Between 1976 and 1981 numbers fluctuated around 10 pairs, from 1982 to 2003 between 2 and 7 pairs. At the same time the surface area covered by orchards decreased as a result of subsidised tree felling in the 1950s and 1960s and the ongoing expansion of residential and industrial areas.